Surface-modified carbon black derived from used car tires as alternative, reusable, and regenerable catalysts for H2 release studies from sodium borohydride methanolysis

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dc.authoridAy, Mehmet / 0000-0002-1095-1614
dc.authoridŞahiner, Nurettin / 0000-0003-0120-530X
dc.authoridAri, Betül / 0000-0003-3557-3055
dc.contributor.authorAri, Betül
dc.contributor.authorAy, Mehmet
dc.contributor.authorSunol, Aydin K.
dc.contributor.authorŞahiner, Nurettin
dc.date.accessioned2025-01-27T20:38:41Z
dc.date.available2025-01-27T20:38:41Z
dc.date.issued2019
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractCarbon black (CB) obtained from used car tire rubbers were treated with concentrated sulfuric and nitric acids. The oxidized CB (CB-COO-Na+) is subsequently modified with epichlorohydrin (ECH) and amines including polyethylene imine (PEI). These modified CBs such as CB-PEI are used as metal-free catalysts in methanolysis of sodium borohydride (NaBH4) to produce hydrogen. The hydrogen generation rate (HGR) of 3089 +/- 44.69 mL.min(-1).g(-1) is accomplished at room temperature with CB-PEI-hydrochloric acid (HCl) catalyst. The resulting activation energy of 34.7 kJ/mol for the temperature range of -20 degrees C to +30 degrees C compares favorably to most of alternative catalysts reported in literature while reaction catalyzing capabilities of CB-PEI-HCl particles extend to the subzero temperature range (-20 degrees C-0 degrees C). The reuse and regeneration studies conducted for the CB-PEI-HCl catalyst showed that these catalysts do provide complete conversion at every use up to five consecutive runs and retain 50 +/- 2.5% of the original hydrogen generation rate at the fifth consecutive reuse. The CBs-based catalysts are fully regenerated with HCl treatment.
dc.identifier.doi10.1002/er.4742
dc.identifier.endpage7172
dc.identifier.issn0363-907X
dc.identifier.issn1099-114X
dc.identifier.issue13
dc.identifier.scopus2-s2.0-85069907524
dc.identifier.scopusqualityQ1
dc.identifier.startpage7159
dc.identifier.urihttps://doi.org/10.1002/er.4742
dc.identifier.urihttps://hdl.handle.net/20.500.12428/23708
dc.identifier.volume43
dc.identifier.wosWOS:000477473100001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherWiley
dc.relation.ispartofInternational Journal of Energy Research
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectH-2 production
dc.subjectmodified carbon black catalyst
dc.subjectsustainable and renewable catalyst
dc.subjectwaste material
dc.titleSurface-modified carbon black derived from used car tires as alternative, reusable, and regenerable catalysts for H2 release studies from sodium borohydride methanolysis
dc.typeArticle

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